The TPMS temperature monitoring is iffy at best because what matters is the temperature of the rubber, not the air rising through the valve stem. It's best used for trend monitoring. In other words, if all tires are essentially behaving the same as the other tires and as they have always behaved then life is good.
Note that the direct sun shining on one side will raise the pressures and temps more than you might think. After a while you'll know that's what's doing it.
A much better method for temperature monitoring is to buy an infrared "gun" with a laser pointer. As soon as you stop, get out and "shoot" all of the wheels hubs. They cool down fast, which is why you need to do it as soon as you stop.
You'll soon learn what is normal for your RV. If you see a hub noticeably hotter than the others you may have a wheel bearing starting to fail or a brake dragging.
You don't need an expensive one, just one with a laser pointer, a Harbor Freight special or similar.
Ray
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2020 Georgetown GT5 34H5
2020 Equinox Premier AWD 2.0L/9-speed
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